v2.4.0.6
Summary of Significant Accounting Policies (Details 7) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Jun. 30, 2012
Assets and liabilities measured at fair value on a recurring basis    
Redeemable Noncontrolling Interest In Middlebury Joint Venture $ (17,200) $ (17,200)
Measured on a recurring basis | Fair value
    
Assets and liabilities measured at fair value on a recurring basis    
Redeemable Noncontrolling Interest In Middlebury Joint Venture 17,200 17,200
Total 27,200 27,200
Measured on a recurring basis | Fair value | Investment In Web International Education Group
    
Assets and liabilities measured at fair value on a recurring basis    
Investment In Web International Education Group 10,000 10,000
Measured on a recurring basis | Significant Unobservable Inputs (Level 3)
    
Assets and liabilities measured at fair value on a recurring basis    
Redeemable Noncontrolling Interest In Middlebury Joint Venture 17,200 17,200
Total 27,200 27,200
Measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Investment In Web International Education Group
    
Assets and liabilities measured at fair value on a recurring basis    
Investment In Web International Education Group $ 10,000 $ 10,000